CN108873470A - A kind of quantum stippling film backing structure - Google Patents
A kind of quantum stippling film backing structure Download PDFInfo
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- CN108873470A CN108873470A CN201810657412.0A CN201810657412A CN108873470A CN 108873470 A CN108873470 A CN 108873470A CN 201810657412 A CN201810657412 A CN 201810657412A CN 108873470 A CN108873470 A CN 108873470A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a kind of quantum stippling film backing structures, including the reflector plate set gradually from the bottom to top, light guide plate, lower water oxygen obstructs diffusion barrier, quantum stippling film, upper water oxygen obstructs lens coating, lower polarizing film, liquid crystal film and upper polarizer, quantum stippling film includes the black matrix structure of multiple sub- black matrix splicing compositions to match with red green blue sub-pixels, with in the matched sub- black matrix of red sub-pixel be filled with the slurry containing red quantum dot, with in the matched sub- black matrix of green sub-pixels be filled with the slurry containing green quantum dot, with in the matched sub- black matrix of blue subpixels without filling, the upper surface of upper water oxygen barrier lens coating is in the lens microstructure to match with sub-pixel.Compared with prior art, the present invention is equipped with special material and micro-structure by the position of improvement quantum dot film again and the utilization rate of light can be improved, solve the problems, such as quantum dot encapsulation and can substitute the effect of the diffusion barrier and prism film in backlight.
Description
Technical field
The present invention relates to field of liquid crystal display, more particularly, to a kind of quantum stippling film backing structure.
Background technique
LCD technology is widely applied in social every field in recent years.It is horizontal continuous along with people's lives
It improves, the requirement to the display quality of liquid crystal display is also gradually increased, wherein there is very high want in terms of colour gamut and brightness
It asks.Quantum dot preferably solves this problem as a kind of appearance of new material, and quantum dot has emission wavelength tunable, hair
Light width, luminous efficiency is high, light, heat and good chemical stability, forms a film by solution processing, spin coating or ink jet printing
It is the luminescent material of new generation shown applied to solid-state lighting and full color flat panel afterwards by luminescence generated by light.Quantum dot LED and tradition
Fluorescent powder LED and current organic LED compare, when for showing and illuminate, have colour gamut is wide, the high and low power consumption of excitation purity,
The advantages that low cost, easy processing.
With the color in spectra collection, with high purity and luminous in utilizing structure of the quanta point material for luminescence generated by light
It can be adjusted by the ratio of quanta point material.Its advantage applied display field can be very good improve display set
Standby contrast and colour gamut.However present technology is essentially consisted in R（It is red）G（It is green）Quantum dot pass through solution or slurry
Quantum dot site, quantum dot film and quantum dot pipe is made in proportion mode hybrid package in site, diaphragm and glass tube, and
By these structures as the structure of backlight among, and using blue light as backlight, excite red green quantum dot to issue by blue light and correspond to
Color light.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of quantum stippling films to carry on the back
Photo structure, the position by improving quantum dot film is equipped with special material and micro-structure again can be improved the utilization rate of light, solution
Certainly quantum dot encapsulates problem and can substitute the effect of the diffusion barrier and prism film in backlight.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of quantum stippling film backing structure includes the reflector plate set gradually from the bottom to top, light guide plate, the barrier diffusion of lower water oxygen
Film, quantum stippling film, upper water oxygen barrier lens coating, lower polarizing film, liquid crystal film and upper polarizer, the lower water oxygen obstruct diffusion barrier
It is inside laid with scattering particles, the quantum stippling film includes that multiple sub- black matrix to match with red green blue sub-pixels are spliced
The slurry containing red quantum dot is filled in the black matrix structure of composition, with the matched sub- black matrix of red sub-pixel, with green
Filled with nothing in the slurry containing green quantum dot, with the matched sub- black matrix of blue subpixels in the sub- black matrix of subpixel matching
The upper surface of filling, the upper water oxygen barrier lens coating is in the lens microstructure to match with sub-pixel.
The production method of the quantum stippling film includes the following steps：
1）Black matrix structure is made by the technique of photoetching or printing in lower water oxygen barrier diffusion barrier upper surface；
2）According to practical light requirement out, the red green quantum dot for setting usage ratio is dissolved in toluene, chlorobenzene, n-hexane, normal octane
In corresponding slurry is obtained in one or more solvents, by the technique that prints or print by the slurry of red green quantum dot point
It is not transferred in the sub- black matrix position of corresponding sub-pixel, the sub- black matrix position of corresponding blue subpixels is empty；
3）Upper water oxygen barrier lens coating is depressed into above quantum stippling film.
The material of the upper water oxygen barrier lens coating is PS, is modified PS, AS, PMMA, PC, diallyl diglycol carbonates
Polymer, diallyl phthalate, diene Poly-s 179, styrene, methyl methacrylate, polymethylacrylic acid hydroxyl
Ethyl ester or ethylene glycol dimethacrylate.
Heat dissipation particle in the lower water oxygen barrier diffusion barrier is polystyrene, poly- polymethacrylic acid methyl ester, silicide, propylene
One of acid is a variety of.
It is produced by way of surface imprint for improving light diffusion the lower surface of the lower water oxygen barrier diffusion barrier
The irregular structure of ability.
The lens microstructure of the upper water oxygen barrier lens coating is the convex lens being made by roll-to-roll coining, each
The setting position of sub- black matrix of the setting position of a convex lens with matching with corresponding sub-pixel is consistent, the base of convex lens
With a thickness of 15um-50um, radius of curvature is 7 × 10 at bottom-5 m-10×10-5m。
The lens microstructure of the upper water oxygen barrier lens coating is to imprint the prism being made by roll-to-roll, each
The setting position of sub- black matrix of the setting position of prism with matching with corresponding sub-pixel is consistent, the substrate thickness of prism
For 15um-50um, the section of prism is in isosceles triangle, and the corner angle of prism is 10 degree of -90 degree.
Compared with prior art, the present invention has the following advantages that：It is special that position by improving quantum dot film is equipped with again
Material and micro-structure can be improved the utilization rate of light efficiency, solve the problems, such as quantum dot encapsulation and can substitute the expansion in backlight
Dissipate the effect of film and prism film.
Detailed description of the invention
Fig. 1 is the schematic diagram of the quantum stippling film backing structure of embodiment one；
Fig. 2 is the schematic diagram of the quantum stippling film backing structure of embodiment two.
In figure, 11- reflector plate, 12- light guide plate, the site 121-, water oxygen obstructs diffusion barrier under 21-, 211- scattering particles,
31- black matrix structure, 32- red quantum dot, 33- green quantum dot, the oxygen barrier convex lens substrate of the upper water proof of 41-, the upper water proof of 42- every
Oxygen prism substrate, polarizing film under 13-, 14- liquid crystal film, 15- upper polarizer, 16- blue LED lamp.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment one
As shown in Figure 1, a kind of quantum stippling film backing structure include the reflector plate 11 set gradually from the bottom to top, light guide plate 12,
Lower water oxygen barrier diffusion barrier 21, quantum stippling film, upper water oxygen barrier lens coating, lower polarizing film 13, liquid crystal film 14 and upper polarizer
15, lower water oxygen obstructs and is laid with scattering particles 211 in diffusion barrier 21, and quantum stippling film includes multiple and red green blue sub-pixels
The black matrix structure 31 of the sub- black matrix splicing composition to match, is filled with in the matched sub- black matrix of red sub-pixel containing red
The slurry containing green quantum dot 33 is filled in the slurry of color quantum dot 32, with the matched sub- black matrix of green sub-pixels, with indigo plant
Without filling in the matched sub- black matrix of sub-pixels, the upper surface of upper water oxygen barrier lens coating is in the lens to match with sub-pixel
Micro-structure.
The production method of quantum stippling film includes the following steps：
1）The obstacle of black matrix structure 31 is made by the technique of photoetching or printing in lower water oxygen barrier 21 upper surface of diffusion barrier；
2）According to practical light requirement out, the red green quantum dot for setting usage ratio is dissolved in toluene, chlorobenzene, n-hexane, normal octane
In corresponding slurry is obtained in one or more solvents, by the technique that prints or print by the slurry of red green quantum dot point
It is not transferred in the sub- black matrix position of corresponding sub-pixel, the sub- black matrix position of corresponding blue subpixels is empty；
3）Upper water oxygen barrier lens coating is depressed into above quantum stippling film, plays the role of that water proof is oxygen barrier and optically focused.
The material of upper water oxygen barrier lens coating is PS, is modified PS, AS, PMMA, PC, diallyl diglycol carbonate polyisocyanate polyaddition
Object, diallyl phthalate, diene Poly-s 179, styrene, methyl methacrylate, poly hydroxy ethyl acrylate
Or ethylene glycol dimethacrylate.
Heat dissipation particle in lower water oxygen barrier diffusion barrier 21 is polystyrene, poly- polymethacrylic acid methyl ester, silicide, acrylic acid
One of or it is a variety of.Irregular structure is produced in the lower surface of lower water oxygen barrier diffusion barrier 21 by way of surface imprint,
For improving light diffusivity.
The lens microstructure of upper water oxygen barrier lens coating is to imprint the convex lens being made by roll-to-roll, i.e., upper water oxygen
Obstruct lens coating and use the oxygen barrier convex lens substrate 41 of upper water proof, the setting position of each convex lens with corresponding sub-pixel phase
The setting position for the sub- black matrix matched is consistent, and the substrate thickness of convex lens is 15um-50um, and radius of curvature is 7 × 10-5
m-10×10-5m.Such as：The substrate thickness of convex lens is 15um, and radius of curvature is 7 × 10-5M, alternatively, the substrate of convex lens
With a thickness of 30um, radius of curvature is 8 × 10-5 m。
The manufacturing process of quantum stippling film backing structure is as follows：
1）Lower water oxygen barrier diffusion barrier 21 is made first, by optical grade PMMA particle and doping scattering particles 211（It is inorganic
Particle or polymer particles）With high temperature and high pressure injects cooling forming in mold, the specification of substrate required for being formed and its
Irregular structure is produced in lower surface, improves light diffusivity.
2）Black matrix structure 31 is made on the substrate of lower water oxygen barrier diffusion barrier 21, passes through the method for photoetching, photoetching
Effect be to be realized in the pattern transfer to glass surface on mask especially by gluing, graph exposure, development.Often
One sub- black matrix obstacle width is 20um, is highly 1um, and center size is 73um*210um.According still further to red green blue three
A sub-pixel is distributed.
3）The slurry of red quantum dot 3232 and green quantum dot 3333 is divided using inkjet printing or the technique of printing
It is not transferred in sub- black matrix barrier in corresponding red green sub-pixel position, sub-pixel position is according to red, green, empty suitable
Sequence arrangement, and empty sub-pixel position is not filled with.
4）The oxygen barrier convex lens substrate 41 of upper water proof is made again, the spin coating OPI resin on transparent pmma substrate, it will
It sets shape and carries out roll-to-roll coining and UV above it and solidify and form micro-structure.By the oxygen barrier convex lens substrate of upper water proof
41 are impressed into quantum coloured silk film is packaged up.
5）Finally lower polarizing film 13, liquid crystal film 14 and upper polarizer are set gradually on the upper oxygen barrier convex lens substrate 41 of water proof again
15, lower surface, which is set gradually, in the case where lower water oxygen obstructs diffusion barrier 21 is printed on the light guide plate 12 of site 121, reflector plate 11, light guide plate
Blue LED lamp 16 is arranged in 12 side.
By changing position of the quantum stippling film in backlight and adding specific baseplate material and micro-structure, compare
With traditional backlight module, diffusion sheet and prism film on backlight can be saved.The benefit of light is improved at the same time
With rate, reduce loss of light during back-light propagation.And its NTSC color gamut has reached 110% or more, has preferable face
The vividness of color.
Embodiment two
The difference between this embodiment and the first embodiment lies in as shown in Fig. 2, the lens microstructure of upper water oxygen barrier lens coating is to pass through
It is roll-to-roll to imprint the prism being made（That is prism film）, i.e., upper water oxygen barrier lens coating is using the oxygen barrier prism substrate of upper water proof
42, the setting position of sub- black matrix of the setting position of each prism with matching with corresponding sub-pixel is consistent, prism
Substrate thickness be 15um-50um, the section of prism is in isosceles triangle, and the corner angle of prism is 10 degree -90 and spends.Such as：
The substrate thickness of prism is 15um, and rib is that the angle of apex angle on isosceles triangle is 40 degree, alternatively, the substrate thickness of prism is
30um, rib are that the angle of apex angle on isosceles triangle is 50 degree.
Remaining structure is as in the first embodiment, repeat no more.
Claims (7)
1. a kind of quantum stippling film backing structure, which is characterized in that including set gradually from the bottom to top reflector plate, light guide plate,
Lower water oxygen barrier diffusion barrier, quantum stippling film, upper water oxygen barrier lens coating, lower polarizing film, liquid crystal film and upper polarizer, under described
Scattering particles is laid in water oxygen barrier diffusion barrier, and the quantum stippling film includes multiple matching with red green blue sub-pixels
Sub- black matrix splicing composition black matrix structure, in the matched sub- black matrix of red sub-pixel filled with contain red quantum dot
Slurry, in the matched sub- black matrix of green sub-pixels be filled with the slurry containing green quantum dot, matched with blue subpixels
Sub- black matrix in without filling, the upper surface of the upper water oxygen barrier lens coating is in the lens microstructure to match with sub-pixel.
2. a kind of quantum stippling film backing structure according to claim 1, which is characterized in that the system of the quantum stippling film
Include the following steps as method：
1）Black matrix structure is made by the technique of photoetching or printing in lower water oxygen barrier diffusion barrier upper surface；
2）According to practical light requirement out, the red green quantum dot for setting usage ratio is dissolved in toluene, chlorobenzene, n-hexane, normal octane
In corresponding slurry is obtained in one or more solvents, by the technique that prints or print by the slurry of red green quantum dot point
It is not transferred in the sub- black matrix position of corresponding sub-pixel, the sub- black matrix position of corresponding blue subpixels is empty；
3）Upper water oxygen barrier lens coating is depressed into above quantum stippling film.
3. a kind of quantum stippling film backing structure according to claim 1, which is characterized in that the upper water oxygen obstructs lens
The material of film is PS, is modified PS, AS, PMMA, PC, diallyl diglycol carbonate ester polymer, diallyl phthalic acid
Ester, diene Poly-s 179, styrene, methyl methacrylate, poly hydroxy ethyl acrylate or ethylene glycol dimethacrylate
Ester.
4. a kind of quantum stippling film backing structure according to claim 1, which is characterized in that the lower water oxygen barrier diffusion
Heat dissipation particle in film is one of polystyrene, poly- polymethacrylic acid methyl ester, silicide, acrylic acid or a variety of.
5. a kind of quantum stippling film backing structure according to claim 1, which is characterized in that the lower water oxygen barrier diffusion
The irregular structure for improving light diffusivity is produced by way of surface imprint in the lower surface of film.
6. a kind of quantum stippling film backing structure according to claim 1, which is characterized in that the upper water oxygen obstructs lens
The lens microstructure of film is to imprint the convex lens that is made by roll-to-roll, the setting position of each convex lens with it is corresponding
The setting position for the sub- black matrix that sub-pixel matches is consistent, and the substrate thickness of convex lens is 15um-50um, radius of curvature
It is 7 × 10-5 m-10×10-5m。
7. a kind of quantum stippling film backing structure according to claim 1, which is characterized in that the upper water oxygen obstructs lens
The lens microstructure of film is to imprint the prism that is made by roll-to-roll, the setting position of each prism with corresponding sub- picture
The setting position for the sub- black matrix that element matches is consistent, and the substrate thickness of prism is 15um-50um, the section of prism in etc.
Lumbar triangle shape, the corner angle of prism are 10 degree of -90 degree.
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| CN201810657412.0A CN108873470B (en) | 2018-06-25 | 2018-06-25 | Quantum dot color film backlight structure |
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| CN201810657412.0A CN108873470B (en) | 2018-06-25 | 2018-06-25 | Quantum dot color film backlight structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109445174A (en) * | 2019-01-02 | 2019-03-08 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
| CN110190096A (en) * | 2019-05-27 | 2019-08-30 | 深圳市华星光电半导体显示技术有限公司 | Display panel and preparation method thereof |
| CN110518112A (en) * | 2019-08-26 | 2019-11-29 | 纳晶科技股份有限公司 | A kind of aeroge quantum dot film, preparation method and the display device comprising it |
| CN111048693A (en) * | 2019-12-06 | 2020-04-21 | 深圳市华星光电半导体显示技术有限公司 | Quantum dot color film substrate and manufacturing method thereof |
| WO2020244291A1 (en) * | 2019-06-05 | 2020-12-10 | 京东方科技集团股份有限公司 | Color filter substrate, display panel, and preparation method for display panel |
| CN114265230A (en) * | 2021-12-29 | 2022-04-01 | 绵阳惠科光电科技有限公司 | Display panel, manufacturing method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114265230A (en) * | 2021-12-29 | 2022-04-01 | 绵阳惠科光电科技有限公司 | Display panel, manufacturing method thereof and display device |
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| CN108873470B (en) | 2021-07-27 |
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